I don't really know what;s going on -- this has all happened fairly recently. I can't access much of the internet except thru Safari and Ichat. Adium won't connect, it tells me "host is down" Mail won't send, it also says "error 64: host is down" My bittorrent won't work either. I've opened my firewall thru system preferences and don't know what to do. I'm using a 2Wire router. Any thoughts on how to troubleshoot?